Kim Hak-cheol is a trashy husband who sends his wife Jin Joo-hee to his friend Kang Min-hyeok as a housekeeper due to gambling debts. He visits his wife once in a while and steals money. He borrows money from Min-hyeok, a golden spooner who is Hak-cheol's friend, on the condition that Joo-hee is sent as a housekeeper. Min-hyeok is kind to his friend's wife, Joo-hee. Over time, the true colors begin to emerge. Meanwhile, Min-hyeok's wife, Nam Gyoo-ri, lives together with them without knowing anything about Joo-hee.

Yoon Bong receives a breakup notice from his wife because of premature ejaculation. Yoon Bong's junior Hae-seong said that it was his special experience. Introduce them. A beauty salon that provides services with bikinis. Yun Bong finds his senses little by little there. With the efforts of Hyun-joo and Min-hee, Yun Bong cures premature ejaculation. So-yoon, his wife, is also happy to see Yoon Bong, who has returned as before.

A sister-in-law goes to a motel with her girlfriend. She runs into her brother-in-law, who is cheating on her sister. The sister-in-law's blood boils, but there's nothing she can do about it, because now he knows she's a lesbian. They make a deal to keep each others' secrets, but the sister-in-law ends up having a threesome with her brother-in-law and her girlfriend.

Seok-joon has two sons; Min-seok, who is married, and Yoon-soo, who is not. Seok-joon tells them he is going to give allowance and his wealth to his daughters-in-law only. Yoon-soo asks one of his lady friends to get married for Seok-joon's money. Min-yeong and Yoon-jin pretend to be Yoon-soo's girlfriends. Then Yoon-jin falls for Seok-joon. The women visit the house often to get on Seok-joon's good side, and so does Yoon-soo's ex-girlfriend, Min-yeong. However, Seok-joon falls in love with Yoon-jin, and Yoon-soo is very disappointed in Seok-joon, who wants to start a new life...

最年轻的小姨子